Merge branch 'upload_pacakges_to_staging_change' into 'master'

Change upload packages to staging

Closes #2583

See merge request !1750

.gitlab-ci.yml

@@ -818,7 +818,8 @@ Docker Release:
       - pkg/
   only:
     - tags@gitlab/omnibus-gitlab
-    - branches@gitlab/omnibus-gitlab
+    - schedules@gitlab/omnibus-gitlab
+    - triggers@gitlab/omnibus-gitlab
 # This stage is ran only on tag:
 # 1. It is a manual action